10
G
General notes
– This device may only be used in pollutant-free non-precipitating air without above-atmospheric or below-atmospheric pressure at the sensor element.
– The CO2 sensor is shock-sensitive. Due to the mechanism’s design, the measuring result may vary if shaken.
– Dust and pollution falsify measurement results and are to be avoided. Slight pollution and dust sediments can be removed by using compressed air.
– In case of pollution, we recommend cleaning and recalibration in the factory.
– In any case, the sensor must not get in contact with chemicals or other cleaning agents.
– The air quality signal “good“...“bad“ is represented by the output signal 0 -10 V.
– When several sensors are connected to one voltage supply of 24 V AC, correct polarity must be regarded as otherwise the alternating voltage source
may be short-circuited.
– The outputs are short-circuit proof. Applying overvoltage or voltage supply to the output will destroy the device.
– If the automatic system (automatic balancing of CO2 measurand) is activated, a cyclical fresh air supply must be provided (see page 8),
as otherwise incorrect measurements can occur.
– The device must be permanently energized to measure the CO2 concentration correctly.
– If this device is operated beyond the specified range, all warranty claims are forfeited.
In addition, the following points are to be observed:
– These instructions must be read before installation and putting in operation and all notes provided therein are to be regarded!
– Devices must only be connected to safety extra-low voltage and under dead-voltage condition.
To avoid damages and errors at the device (e.g. by voltage induction) shielded cables are to be used,
laying parallel with current-carrying lines is to be avoided, and EMC directives are to be observed.
– This device shall only be used for its intended purpose. Respective safety regulations issued by the states, their control authorities,
the TÜV and the local energy supply company must be observed. The purchaser has to adhere to the building and safety regulations and has to prevent
perils of any kind.
– No warranties or liabilities will be assumed for defects and damages arising from improper use of this device.
– Consequential damages caused by a fault in this device are excluded from warranty or liability.
– These devices must be installed and commissioned by authorised specialists.
– The technical data and connecting conditions of the mounting and operating instructions delivered together with the device are exclusively valid.
Deviations from the catalogue representation are not explicitly mentioned and are possible in terms of technical progress and continuous improvement of
our products.
– In case of any modifications made by the user, all warranty claims are forfeited.
– This device must not be installed close to heat sources (e.g. radiators) or be exposed to their heat flow.
Direct sun irradiation or heat irradiation by similar sources (powerful lamps, halogen spotlights) must absolutely be avoided.
– Operating this device close to other devices that do not comply with EMC directives may influence functionality.
– This device must not be used for monitoring applications, which serve the purpose of protecting persons against hazards or injury,
or as an EMERGENCY STOP switch for systems or machinery, or for any other similar safety-relevant purposes.
– Dimensions of enclosures or enclosure accessories may show slight tolerances on the specifications provided in these instructions.
– Modifications of these records are not permitted.
– In case of a complaint, only complete devices returned in original packing will be accepted.
Notes on commissioning:
This device was calibrated, adjusted and tested under standardised conditions. When operating under deviating conditions,
we recommend performing an initial manual adjustment on-site during commissioning and subsequently at regular intervals.
Commissioning is mandatory and may only be performed by qualified personnel!
These instructions must be read before installation and commissioning and all notes provided therein are to be regarded!
Subject to errors and technical changes. All statements and data herein represent our best knowledge at date of publication. They are only meant to inform about
our products and their application potential, but do not imply any warranty as to certain product characteristics. Since the devices are used under a wide range
of different conditions and loads beyond our control, their particular suitability must be verified by each customer and/or end user themselves. Existing property
rights must be observed. We warrant the faultless quality of our products as stated in our General Terms and Conditions.
